CN101291703A - Apparatus for delivery of pressurised gas - Google Patents

Apparatus for delivery of pressurised gas Download PDF

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Publication number
CN101291703A
CN101291703A CNA2006800393254A CN200680039325A CN101291703A CN 101291703 A CN101291703 A CN 101291703A CN A2006800393254 A CNA2006800393254 A CN A2006800393254A CN 200680039325 A CN200680039325 A CN 200680039325A CN 101291703 A CN101291703 A CN 101291703A
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CN
China
Prior art keywords
gas
equipment
cistern
aerator
conduit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2006800393254A
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Chinese (zh)
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CN101291703B (en
Inventor
D·伯顿
F·布劳奇林格尔
W·弗里曼
G·帕拉特
A·沃莱斯
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Compumedics Ltd
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Compumedics Ltd
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Priority claimed from AU2005905836A external-priority patent/AU2005905836A0/en
Application filed by Compumedics Ltd filed Critical Compumedics Ltd
Publication of CN101291703A publication Critical patent/CN101291703A/en
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Publication of CN101291703B publication Critical patent/CN101291703B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A61M16/109—Preparation of respiratory gases or vapours by influencing the temperature the humidifying liquid or the beneficial agent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/107—Filters in a path in the inspiratory path
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A61M16/161—Devices to humidify the respiration air with means for measuring the humidity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0039—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/42—Reducing noise
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502—User interfaces, e.g. screens or keyboards
    • A61M2205/505—Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/084—Supporting bases, stands for equipment
    • A61M2209/086—Docking stations

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Air Humidification (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Ventilation (AREA)

Abstract

The present invention provides a gas delivery device and system and methods for delivering humidified pressurised gas through a conduit to a subject. The configuration of the elements of the gas delivery device enable the device to be conveniently oriented from a horizontal to vertical position to suit the needs of a user. The gas delivery device may incorporate a Helmholtz resonator for dampening sound of the motor. The conduit may incorporate concentric tubes to allow it to conveniently engage the humidifier at a single aperture. The invention includes a method of operating a blower motor for a gas delivery device using a single Hall sensor. The gas delivery device may be disposed in a sound housing for dampening the sound of the motor. The gas delivery device may include a valve chamber allowing the blower to rapidly change gas pressure or flow rate. The invention also includes a method of operating a blower motor by adjusting the timing of winding excitations depending on the rotational position or velocity of the impeller.

Description

Transmit the equipment of Compressed Gas
Technical field
The present invention relates to be used to transmit system, the apparatus and method of breathable gas.Specifically, the present invention relates to transmit system, the apparatus and method of gas with constant or variable flow, pressure and humidity.More particularly, thus the present invention relates to breathable gas is sent to the apparatus and method that face shield is treated disordered breathing.
Background technology
Thereby many devices can be sent to the breathable gas that comprises air the patient disorder breathing is treated sleep disordered breathing specifically.For example, comprise in the process of sleep-apnea of obstructive sleep apnea disease in treatment, usually press (CPAP) to transmit air with the positive air of persistence, wherein, thus air keeps patient's airway unobstructed effectively to breathe by face shield with the air flue of routinely supplying with sleeping patient greater than the pressure of ambient pressure.
For compressed-air actuated persistence curative effect, with the pressure of the breathing pattern that is suitable for expecting with flow velocity transmits air and other gas is very important.During the treatment, the transmission of this gas should not cause the sensation of " blowing into wind ".Be known in the art, usually for comfortable and comprise the multiple combination of fan, air conduit, face shield and face shield assembly for the system that comprises gas transport means of gas humidification.Gas transport means can be controlled by circuit and computer software, thereby with flow velocity and the pressure of expecting gas is sent to face shield by air conduit.
Air delivery system of the prior art, method and apparatus generally comprise a limited number of desired character.For example, can be so that only a kind of flow velocity or a limited number of multiple flow velocity transmit gas.Similarly, can transmit gas as compressed air simply, utilize the not enough compressed air of humidity to treat and to make patient's respiratory tract become dry, thereby produce discomfort.The device that transmits gas may be big and heavy, thereby be difficult to handle.Be known in the art, utilize this device can disturb patient's sleep thereby the fan of use in device can produce noise.Device of the prior art is known, wherein, controls flow velocity by changing motor speed.Aspect a kind of like this effect of speed controlling flow velocity, this device is restricted: under the situation of this speed of employing, can change by the dynamic effect pressure of motor.
What need is air delivery system and the method that such being used to transmits gas, it comprise relatively easily handle, operate, quiet and transmit the suitable gas of humidity with desired flow rate and pressure.In addition, air delivery system should relatively easily be made and transport.Air delivery system should be able to be switched between stress level fast, exhales and respiratory variations thereby adapt to.
Comprise system and the device of CPAP, VPAP (variable positive air pressure), BiPAP (the positive air pressure of two levels) or APAP (automatically positive air pressure) in this described air delivery system, all these has described the flow velocity and the pressure of the gas that is transmitted by device or system.For example, during the patient exhaled, in suitable, BiPAP switched to low-flow, thereby the patient can more cosily breathe and needn't suck " Air Force ".In addition, provide acronym and the implication thereof that in this document, is used to describe each element in the table 1.In this document, term " comprises " and " comprising " all is used for nonrestrictive situation.
Brief description of drawings
Fig. 1 illustrates the view of Compressed Gas transfer system;
Fig. 2 illustrates the view of the electric machine controller of gas transport means;
Fig. 3 illustrates the current of electric sensing circuit;
Fig. 4 illustrates the block diagram of electric machine controller;
Fig. 5 illustrates the operation of electric machine controller PWM;
Fig. 6 illustrates the humidifier parts of gas transport means;
Fig. 7 illustrates the functional mechanism block diagram of the electronic sub-system of the gas transport means with the keyboard that is used for control operation;
Fig. 8 illustrates the perspective view of gas transport means;
Fig. 9 illustrates the side view of the aerator of partly cutting open;
Figure 10 illustrates the side view of the aerator of partly cutting open;
Figure 11 illustrates pneumatic filter with the form of perspective view;
Figure 12 a illustrates the top perspective that cistern places the gas transport means outside the gas transport means;
Figure 12 b illustrates the top perspective that cistern operationally places gas transport means gas inside transporter;
Figure 13 illustrates the side view of the longitudinal cross-section of gas transport means; And
Figure 14 illustrates the vertical view of the intravital aerator of sound insulation shell of gas transport means.
Summary of the invention
The object of the present invention is to provide a kind of humidification system that simply is used for Compressed Gas.Another object of the present invention is to provide a kind of wieldy relatively air delivery system.Another object of the present invention is to provide a kind of method that the gas of humidifying is sent to object by conduit.
The invention provides a kind of air delivery system that comprises the humidifier assembly, this humidifier assembly comprises movably cistern.For the present invention, can be by the humidity level of device users selection by the gas of water.The present invention advantageously has such function, can control the variation that the humidity level is set by the temperature of adjusting the water in the cistern.Can easily remove the cistern in the gas transport means constructed according to the invention, to clean or to change.
The present invention can comprise a kind of pressure-sensing device, is used to detect at the gas pressure that is used to send near the position the position of the conduit of the Compressed Gas of gas transport means and this means for engaging.Advantageously, this layout makes the pressure by the gas of this conduit transmission can be calculated as the function of the variable that comprises detected pressure, and this function has been considered the parameter of face shield type and catheter length.
Another object of the present invention is to provide a kind of gas transport means and system, and this gas transport means and system can change effectively gas is provided to patient's air flue, simultaneous adaptation patient's breathing patterns rapidly to gas pressure and flow velocity.When breathing during the patient is treating, these system element cooperations are to reduce the pressure oscillation at patient's face shield place.The invention provides a kind of air delivery system, this air delivery system is controlled by the computer software that moves on microcontroller.According to the present invention, from the output of sensor senses device, flow sensor, temperature sensor and the humidity sensor of gaging pressure simulated-digital converter (ADC) converts digital value expediently to, so that follow-up signal processing.For the present invention, microcontroller is provided with the conduit of expectation and the instantaneous pressure in the face shield by the motor speed of adjusting fan according to computer software.The invention provides a kind of motor speed control method, wherein, the signal from a rotor-position sensor is carried out digitized processing drive signal to determine current speed, position and three phase place windings.For the present invention,, motor make this gas transport means to respond rapidly to the variation of predetermined gas pressure setting thereby having enough little inertia.
This humidification system comprises the cistern that is used for the gas that transmits is carried out humidification, and when this appliance cover was in the closed position, this cistern engaged and seals with conduit.The present invention also provides a kind of cistern, and when this appliance cover was in the closed position, this cistern engaged with heating plate (heating plate).This heating plate applies bias voltage to water container so that it engages with heating plate.The present invention also provides a kind of water container that becomes one with gas supply system.The present invention provides a kind of port that incorporates into QI KOU and gas outlet to this cistern, and this can advantageously simplify recharging of cistern.Preferably can advantageously reduce the cost of the manufacturing of cistern by the simple structure of the cistern of the polymer formation that can carry out blowing.More advantageously, can easily clean or change this cistern.
The invention provides a kind of tight isolation room, thereby can carry out sound insulation to the sound that sends from aerator effectively around aerator.Preferably, it is formed by metal, and more preferably, it is formed by the zinc die cast, and preferably, the wall general thickness of this isolation room is greater than 1.6mm.Global facility in this isolation room comprises one or more pumping chambers, the sound that described pumping chamber can decay effectively and propagate along air duct.In addition, advantageously, the whole isolated chamber is as helmholtz resonator, and its frequency can be made amendment by inlet and/or exit passageway are provided with preferred size.Preferably, the cross section of this inlet and/or exit passageway generally is annular, and has sufficient length and minimize with the resonant frequency with this isolation room, and can not cause undue flow restriction.
For the present invention, the structure of each parts of gas transport means allows this gas transport means being that replaceable installation orientation is provided with respect to level or vertical any suitable orientation.More advantageously, the invention provides a kind of like this embodiment, this embodiment comprises vertically disposed gas transport means, thereby this device can be installed on the wall.
More advantageously, for the present invention, this gas transport means comprises can be contained in the intravital air filter of removable hyaline test, can see the dirty side of this filter by transparent shell.
The present invention also provides a kind of graphical user interface (GUI), thereby is convenient to the historical feedback of structure, assembling and patient of this device.According to the present invention, this GUI can comprise the alarm time clock feature.
For the present invention, device patient's ad hoc structure and sleep study data can be recorded on the removable SD card media.Because the patient only needs to transmit the SD card, so this feature is providing motility aspect assembling of the present invention and the data analysis that passes through to carry out tele-experimentation of the present invention chamber subsequently.
In one aspect, the invention provides the equipment that is used for breathable gas is sent to object, this equipment comprises: aerator is used for Compressed Gas is sent to cistern so that this gas is carried out humidification; Heater; Housing is used to hold this aerator and this cistern; Air intake and gas outlet, described air intake and described gas outlet all engage with a port in this cistern; And conduit, be used for the gas from the gas outlet is directed to object.
In one aspect of the method, the invention provides the equipment that is used for breathable gas is sent to object, this equipment comprises: aerator, be used to transmit Compressed Gas, and this aerator is positioned at the sound insulation housing; Housing is used to hold this aerator and cistern; Heater is used for the water of this cistern is heated; Air intake and gas outlet; Pneumatic filter is contained in the removable transparent shell; And conduit, be used for the gas from this gas outlet is directed to object.
In one aspect of the method, the invention provides the equipment that is used for breathable gas is sent to object, this equipment comprises: aerator is used to transmit Compressed Gas; Housing is used to hold this aerator; Heater; Air intake and gas outlet; Conduit is used for the gas from this gas outlet is directed to object; And at least one pumping chamber and at least one resonance device, adjacent with this aerator.In aspect this, this equipment can comprise cistern and the heater that the water in this cistern is heated.
In one aspect of the method, the invention provides the equipment that is used for breathable gas is sent to object, this equipment comprises: aerator is used to transmit Compressed Gas; Cistern is used for gas is carried out humidification; Heater; Housing is used to hold this aerator and this cistern; Air intake and gas outlet; And conduit, be used for the gas from this gas outlet is directed to object, wherein, this equipment can position operation with any proper angle from basic horizontal to vertical substantially orientation, and the liquid that can not in this cistern is revealed.
In one aspect of the method, the invention provides the equipment that is used for breathable gas is sent to object, this equipment comprises: aerator, has the outlet that is used to transmit Compressed Gas, this aerator comprises motor room, two outlets air flue and valve chambers, and this aerator comprises the device that is used for changing rapidly gas pressure or flow velocity; Housing is used to hold this aerator and this cistern; Air intake and gas outlet; Pneumatic filter is contained in the removable transparent shell; And conduit, be used for the gas from this gas outlet is directed to object.
Above-mentioned aspect any one in, this conduit can gas flows into and effusive concentric tubes constitute by being used for.Preferably, this inner conduit provides and enters gas.
Preferably, the device that is used to change gas pressure or flow velocity is at least one impeller.Preferably, this equipment comprises and is used for the time signal dispensing device that the user determines the time of this equipment.Preferably, this sender unit is a clock.
In another aspect, the invention provides a kind of method of motor of the aerator that is used for controlling gas transport means, this method comprises the steps: determining step, determines the position of rotation of impeller; Determining step is determined the speed of impeller; And set-up procedure, adjust the sequential of the winding excitation of the speed be used to control this impeller.
In another aspect, the invention provides and a kind of breathable gas is sent to the method for object, this method comprises the steps: compression step, adopts impeller that environmental gas is compressed; The humidification step is carried out humidification to this environmental gas; Forwarding step is directed to the gas behind the humidification air flue of object; Wherein, this compression step comprises: detect step, adopt a sensor device to detect the position of this impeller.Preferably, using sensor device in the method is hall effect sensor.
The detailed description of accompanying drawing and most preferred embodiment
The contrast accompanying drawing is understood the present invention more easily.The purpose that should be understood that these accompanying drawings is to schematically show embodiments of the invention, and the scope of the present invention defined in the claim comprises the other embodiment that had not illustrated.Fig. 1 illustrates each typical element of Compressed Gas transfer system.The present invention includes: gas is drawn in the gas transport means by motor and blower assembly by the replaceable filter system, and this motor and blower assembly are contained in the noise suppression housing, thereby makes this system more undisturbedly to operate.The sensing flux device of connecting with gas passage and putting can be used for the detected gas flow.During other aspect within the scope of the invention is included in and describes below.
Shell body
The element of contrast Fig. 8 below Figure 14 is expressly understood more.The shell body of this gas transport means comprises: upper shell 1, lower house 2, first side plate 3, the second side plate (not shown) relative with described first side plate and cover 4.This upper shell and lower house can engage by suitable engagement device.Preferably, this engagement device is a screw.The joint of this loam cake and lower cover positions to form relative leak proof seal this first side plate and second side plate.In joint place, this shell body is more intense to the ability that prevents to be poured in the water on this gas transport means top and enter, and no matter the orientation of this housing.This lid engages with upper shell by the lid engagement device.Preferably, this lid engagement device is pivoting point bayonet unit (snap-fit at thepivot point means).This pivoting point device can be any suitable slewing equipment (pivoting means) such as hinge or joint pin.Perhaps, more advantageously, this slewing equipment can be a kind of mechanism, and this mechanism comprises that not relative this housing of the instantaneous point of rotation carries out fixed mechanism.The example of this mechanism includes but not limited to quadric chain (four-barlinkage mechanism).When engaging in the closed position, this lid can be decided mechanism 5 by cover lock and carry out locking position.Preferably, to decide mechanism be latch to this cover lock.Preferably, this latch is spring actuated.Preferably, this lid also is spring actuated, thereby it can be opened when this lid latch breaks away from.If spring actuated, the spring of then actuating lid preferably includes rotary damper, thereby produces stably opening action and avoid perhaps can taking place in addition the action of " jerking movement " spring for this lid.This pivoting point can be positioned at the top of this housing, and perhaps it can be positioned at the back of this housing.
For the present invention, user interface (UI) is positioned on the upper shell.Preferably, this UI is formed by sealing device between transparent lens 6, upper shell and this lens and flexible keyboard 7.Preferably, the sealing device is a packing ring.Preferably, this keyboard comprises at least one button.These lens engage with upper shell by suitable engagement device.Preferably, this lens engagement device is the bayonet unit that is positioned on the every side of lens.Perhaps, this lens engagement device can be an adhesive tape.Best is that these lens make the user of gas transport means see the display that information is sent to the user by shell body.Another advantage of these lens is: it engages this flexible button keyboard in the fixed position.Another advantage of the joint of these lens is that anti-sealing flows into the sealing of this upper shell through screen or button hole.Preferably, this flexible button keyboard is formed by silicon, thereby allows the gas transport means user advantageously order to be sent to this gas transport means.
Air filter
For the present invention, air filter comprises procapsid 8, back casing 9 and at least one roughing efficiency air filter (primary filter) 10, as shown in figure 11.Preferably, this case material is transparent.Preferably, this air filter comprises medium effeciency filter (secondaryfilter) 11.For the present invention, this procapsid engages with back casing with formation and comprises roughing efficiency air filter at least and preferably include the passage of medium effeciency filter.Preferably, this engagement device comprises bayonet unit.In the operation of this gas transport means, form the procapsid of passage and the joint of back casing and require to pass through filter media by the gas that gas transport means transmits.This filter media can comprise just imitates medium (primary medium) and middle effect medium (secondary medium).This filter procapsid comprises a plurality of holes, is used to allow gas to flow into roughing efficiency air filter and contact to realize filtration with the surface of roughing efficiency air filter medium.Preferably, the cross-sectional area in these holes is greater than 400mm 2To avoid restriction to flow into roughing efficiency air filter.This filter back casing comprises the hole of the adapter connector that receives upper shell, and this hole provides good sealing when engaging.Preferably, this adapter connector is male pipe.This filter engages with upper shell under this lid.More advantageously, allow filter housings is operated to remove and to change this filter.For the utilization of gas transport means constructed according to the invention, change filter and will guarantee that sucking air filters.
This roughing efficiency air filter medium makes it possible to remove big dust particle from gas, and the medium effeciency filter medium is used for removing than small-particle.For the present invention, use the medium effeciency filter medium of certain limit.The example of this medium comprises the medium that is suitable for removing pollen, antibacterial, smog air pollution and virus.The scope that should be understood that filter media is not limited to above-mentioned enumerating.
Aerator/motor
For the present invention, this aerator can comprise the parts of the different structure that illustrates for example here.Should be understood that other structure is in the scope of the present invention for required protection.
In the first embodiment of the present invention shown in Figure 9, aerator is by top housing 12, bottom shell body 13 and cut apart dividing plate (dividing septum plate) 14 and form.These elements utilize screw or other engagement device to engage, to carry out gas-tight seal and to form blower room, motor room, two outlet air flues and valve chamber.This blower room accommodates impeller 16, and this impeller 16 is installed on the axle by the bearing 17 at every end place.Preferably, bearing is press fitted into the top housing and another bearing is arranged in bottom shell body, thereby it is moved axially in housing.Preferably, helical spring is kept effective axial pre-load expediently on two bearings.Preferably, these bearings adopt the low noise lubricant to be lubricated.This impeller 16 can have a series of fins on its top surface, thereby moves air when impeller 16 rotations.For the present invention, between each fin the top surface of impeller and the little gap between the basal surface.With regard to combination, these features make the major part of the air flow that produced by impeller flow out the blower room and enter and eject implication road (being formed by top housing and dividing plate) and produce elevated pressures in this air flue.These apertures also make some air flow into bottom outlet air flue (being formed by bottom shell body and dividing plate) and form the pressure that reduces in this air flues.In this valve chamber, valve member 18 adjustment is flowed out each the air capacity that ejects in implication road and the bottom outlet air flue.Bestly be, this valve 18 can very rapidly change the pressure of whole outlet airs, and does not need to change the motor of the speed of impeller.This motor room comprises motor mechanism and electronic circuit, and this motor mechanism and electronic circuit are firmly held on the suitable position by bottom shell body 13 and dividing plate 14.
As shown in figure 10, in the second embodiment of the present invention, this aerator comprises top housing 20 and bottom shell body 21, and this top housing 20 and bottom shell body 21 adopt suitable engagement device to engage to form gas-tight seal.Preferably, this engagement device comprises screw.These housings behind the joint form blower room, motor room and exit passageway.Impeller 24 is positioned at the blower room, and this impeller 24 has two bearing holder (housing, cover)s 23 and Magnet 25, and wherein, these two bearing holder (housing, cover)s 23 are installed to arbitrary end of blower room, and this Magnet 25 is installed to the centre of the central shaft of this chamber.Apical axis bearing sleeve 23 is pressed into the top housing, and base bearing radially vertically remains in the bottom shell body by impeller spring 22.Preferably, this impeller and axle 24 are integrally molded by glass-filled polymer.Perhaps, they can be used as polymer and are molded on the metal shaft fully.
The top housing includes QI KOU, and this air intake is positioned on the blower room, allows gas to enter this blower room.This impeller has a series of fins, and these fins are positioned on its top surface, is designed to when impeller rotates air be moved on to outlet.Such gas motion makes outlet pressure rise, and this outlet pressure rises and can be adjusted by the speed of impeller rotation.The basal surface of this impeller is put near the wall on the bottom shell body, thereby advantageously generates the motor room.In this motor room, motor winding 27 and electronic circuit 28 are located in place securely by buckle or other suitable device and are gone up, and the power of drives impeller rotation is provided.
Preferably, this motor utilization does not have the toroidal core of magnetic joint.Three phase windings are used for star structure, provide Sine Modulated power (SPWM) to minimize will reverse excitation to them.Preferably, rotor is formed by accurate moulded plastic fully, thus best be to have avoided demand to inner metal shaft and dynamic equilibrium.For the present invention, electricity commutation is by adjacent with rotor magnet and a hall effect sensor that put carries out phasing.
The sound insulation housing
For the present invention, in one embodiment, shown in Figure 13 and 14, this sound insulation housing is made of upper shell 56, lower house 57, seal washer 58, two dividing walls 59, inlet tube 60, outlet 61, flexible aerator union joint 62 and aerators described here.Preferably, this upper shell and lower house are formed to reduce the sound transmission from the enclosure interior to the outside, thus with voice packet with which by dense material molding or casting.Preferably, this dense material is zinc or mineral-filled plastics.This upper shell and lower house engage by engagement device, thereby locate two dividing walls, inlet tube and outlets, and around peripheral seal washer are pushed with gas-tight seal.Preferably, this engagement device is a screw.This joint according to housing of the present invention has formed three chambers, i.e. blower room, master voice chamber and infrasonic sound tone chamber.This aerator is positioned at this blower room.Preferably, this aerator is installed on two springs promptly on the top spring 64 and bottom spring 65, and this can guarantee that this aerator has low resonant frequency.This spring is used for reducing the transfer of vibration from aerator to the sound insulation housing.Preferably, in order to increase the noise isolation effect, flexible sheets 66 be positioned on the spring of top and bottom spring under.At the blower export place, flexible pipe is fixed to outlet 61 with this outlet.Preferably, this flexible pipe has the corrugated side.In this embodiment, this flexible pipe forms the part of seal washer 58.Preferably, this flexible pipe is formed by TPE material molding.Perhaps, it can be an independent sector.This dividing wall 59 is isolated these chambers and is reduced transmission sound from a chamber to next chamber.Preferably, these dividing walls can comprise a pipe, and this pipe extends to next chamber.The function of this pipe is to transmit all air flows between these chambers.Preferably, there is little distance the end of this pipe with the relative wall of next chamber, and being enough to can limit air flow.Preferably, this relative wall is covered noise reduction foam 59 or other suitable material, thereby sound-inhibiting propagates into this pipe and thus between these chambers.
Humidifier
The present invention includes humidifier, this humidifier is included in the gas transport means that realizes gas transmission and humidification function, thereby cooperates in the operation of this device.As shown in figure 12, this humidifier comprises: cistern 30, gas conduit joint 33, air seal set 28, one group of heating plate 31 with inner ceramic heater and cistern heat conductor 32.In operation, this humidifier covers under this lid 4.
Preferably, this cistern 30 is formed by the blowing thermoplastic materials.This cistern surface comprises straight, smooth a plurality of parts, and described a plurality of parts are corresponding with the track 36 on receiving surface or the upper casing 1.In operation, these track fixings: this cistern correctly is placed in this equipment and is firmly held on the suitable position.In a preferred embodiment of the invention, cistern can not insert any other position except the tram in this equipment.Go up in place, this cistern heat conductor 32 combines with last heating plate 31 by the operation of biasing device 38,38 pairs of these heating plates of this biasing device apply bias voltage to the direction of this cistern, and are effectively heat passage to guarantee to carry out between this heater and water.Preferably, this biasing device 38 is heating plate springs.More advantageously, for the present invention, this crown cap can be the sort of type that is usually used in the packaging for foodstuff.For the present invention, handle 38 can extend from this cistern.In such an embodiment, preferably, this handle 38 comprises the hinge 39 of at least one one.Preferably, the hinge of this one is molded to smooth, thereby when lid 4 broke away from open position, this handle ejected automatically with convenient finger and gets involved.This handle 38 also is convenient to cistern is moved to the service water tap from this equipment.
In operation, this cistern 30 is full of water and is put back on the correct position in this equipment, joins the closed position to thereby allow to cover 4.This gas conduit joint 33 is inserted in and covers in 4, thereby moves with hinged as parts.Be engaged in case cover 4, then the outer surface of gas conduit joint 33 is also orientated as and is engaged at cistern opening part 29 with this cistern air seal set 28 simultaneously.In operation, lid 4 disengaging also makes gas conduit joint 33 break away from from cistern simultaneously, thus realize this cistern 30 fast, be easy to get involved and remove.
Preferably, this gas conduit joint 33 is connected on the flexible gas conduit 40, thereby Compressed Gas is provided to air intake 35 and keeps gas-tight seal at the two ends of described flexible gas conduit, covers 4 simultaneously and is in and opens or closes the position.
The most favourable aspect of the present invention is to be used for to flow into and a hole 29 of eluting gas from this gas transport means.For the present invention, gas conduit joint 33 comprises that adjacent gas inflow catheter 35 and gas flow out conduit 34.Preferably, these airflow ducts are concentric tubees.Preferably, gas inflow catheter 35 is positioned at the inside that gas flows out conduit 34.In operation, the dry gas of compression flows into cisterns 30 contacting with warm water surface 42 from this gas inflow catheter 34, thereby this gas becomes moistening before flowing out conduit 34 flowing through gas.
The present invention includes small-sized cistern, this small-sized cistern is enough greatly holding enough water, thereby can carry out humidification to patient's required enough breathing gas of sleeping long night.This cistern is constructed to its surface and engages with the area of heating surface of heater, and wherein, this heater is usually with the approximate 45 acute angle settings of spending.Usually allowing gas transport means for example on the bedside desk, to be provided with the position in the surperficial parallel lip-deep hole 29 that engages the area of heating surface at horizontal alignment, perhaps for example on wall, be provided with vertical orientated, perhaps in office what and the not operation of this equipment of entail dangers to and humidifier thereof is set on the intermediate orientation easily.More advantageously, on departing from horizontal alignment or vertical orientated any direction the angle of this equipment being changed 20 degree will can not cause water to carry out any leakage from cistern 30.
Fig. 6 is the sketch map that the operation of humidifier constructed according to the invention is shown.The temperature of this heating plate is the unique controlled variable that is provided with in the gas humidity.The dutycycle of this heating element heater is used to control the heating plate temperature.Optical coupling zero crossing TRIAC driver is used for opening and closing TRIAC under the control of microcontroller.This optical coupling comprises the isolation of TRIAC driver output (on the rail voltage line) and microprocessor control signal.Zero-cross switch reduces the EMI that is produced by TRIAC.
For the present invention, the computer program that moves on microcontroller is controlled this heating plate temperature to produce the humidity level that the user selects.In one embodiment, this gas transport means comprises the humidity level of air temperature sensor and a plurality of user request.For the present invention, air themperature and heating plate input and this air velocity are used for being provided with the heating plate temperature by this computer program.Preferably, this gas transport means comprises the humidity sensor that is used for surrounding air, thereby can control more accurately humidity.
For the present invention, this humidifier comprises heater, temperature-adjusting device and the thermal element of main linely connected power sup ply, wherein, this heater is preferably switched by TRIAC, this temperature-adjusting device is connected on the heating plate, and this thermal element is connected to heating plate to provide Temperature Feedback to this software.The water temperature of the humidity that air temperature sensor is used to help to determine that the user selects, humidity sensor can be installed and shield with the intravital thermal source of this shell near shell end.
This gas transport means can comprise does not need the user to get involved the thermostatic hand-reset button of heating plate, thereby can provide over-temperature protection under situation about breaking down.
Electric Machine Control
Motor to aerator is controlled, thereby makes aerator to change rapidly gas pressure and flow velocity.As shown in Figure 2, this gas transport means comprises motor and the electric machine controller that is used for gas transport means, and this motor and electric machine controller comprise following main subsystem:
The brushless DC motor that comprises a hall effect sensor that is used for the rotor-position sensing;
The digital motor controller;
Motor driver and overcurrent detection circuitry; And
Hall effect sensor Signal Regulation and analog/digital converter (ADC).
Brushless DC motor
Brushless DC motor as known in the art needs three hall effect sensors so that required rotor position information to be provided.The present invention includes a kind of control method, this control method only needs a Hall-effect position sensors.
This gas transport means comprises motor, and this motor comprises three windings, and these windings design with Star topology.According to the present invention, these windings provide energy with the predetermined sinusoidal sequence, thereby start and keep the motor rotation.The dutycycle of this sequence has been determined this electrical consumption how many electric energy, this electric energy is controlled motor speed again.
The motor-driven electronic circuit
This motor-driven subsystem comprises power supply of motor winding and the necessary electronic circuit of detection-sensitive motor electric current.This motor driver comprises six MOSFET, and these six MOSFET are according to the structural configuration of three half-bridge drivers.These FET power to the motor winding.It also comprises essential level translator, is used for becoming suitable MOSFET to drive signal the LVCMOS conversion of signals from electric machine controller.
Current of electric sensing circuit shown in Figure 3 is used for excessive current conditions is sent to electric machine controller in the mode of signal.Under the situation that the overcurrent fault occurs, this allows the controller disable motor.According to the present invention, this is realized by fixed level overcurrent threshold dector.The present invention includes two parts of current feedback subsystem.First is the simple low pass filter amplifier, is used for the voltage on the current-sense resistor is amplified and filters.Second portion is the comparator that simply has hysteresis, is used to detect the overcurrent fault.The output of this comparator directly drives and enters electric machine controller.
The motor position feedback
According to the present invention, this motor has a hall effect sensor, is used for the position of detection rotor.This signal converts digital value to by ADC.
Electric machine controller
According to the present invention, this electric machine controller is rotated this gas transport means motor.According to for example application of CPAP, APAP, BiPAP or VPAP and so on, this controller makes motor be rotated with suitable frequency.It uses a hall effect sensor to receive the rotor-position feedback, and it uses this hall effect sensor to produce three sine pulse width modulation (PWM)s driving signals.
This electric machine controller comprises following input and output:
ON/OFF is imported to open or close motor by MPI;
The motor gain is imported so that motor speed to be set by MPI;
Phase place, input is with the relative phase between the phase place 0 that Hall-effect position sensors and drive motors winding 1 are set;
Overcurrent, this input send signalisation and the situation of overcurrent occurs and make this electric machine controller stop motor;
The SPI interface, this two-way SPI interface is periodically sampled to Hall effect position ADC and these data is delivered to controller;
Phase place 0, motor winding 1 drives the high signal and the low signal of electronic circuit;
Phase place 120, motor winding 2 drives the high signal and the low signal of electronic circuit;
This signal is with respect to phase place 0 skew 120 degree.
Phase place 240, motor winding 3 drives the high signal and the low signal of electronic circuit;
This signal is with respect to phase place 120 skews 120 degree.
As implementing example of the present invention, electric machine controller block diagram shown in Figure 4 has been described in this.
The ADC driver
This ADC driver is the SPI interface of per 2040 clock cycle (5.1 μ s) hall effect sensor ADC being sampled.It is output as 12 digital bits with original rotor-position, and produces the sampling enable signal with each new sampling.Face system was to handle new data under this triggered.When rotation, the output of this hall effect sensor is sinusoidal wave with pictorial representation the time.Curve among Fig. 4 on the ADC drive bay illustrates the digitized original hall effect sensor signal that 1 circle rotor rotation is obtained." y " axle expression ADC value (0 to 123).Attention: minima is always greater than 0, and maximum is always less than 1023.
Level deviation
Rotor-position is handled with the cycle of calculating, maximum and minima.Peak value-the peak amplitude (maximum ADC value-minimum ADC value) of this subsystem calculating location pick off initial data sampling.Per eight motor cycles are recomputated once this value.By deducting minimum ADC value it is carried out level deviation, and output to the normalization subsystem of adjusting through signal from the sampling of electric current initial data.Fig. 4 illustrates the level deviation waveform.
Normalization
This subsystem is handled so that this signal is carried out normalization peak value-peak amplitude and current signal adjustment sampling, thereby makes this position be in 0 to 1023 the scope.Fig. 4 illustrates the normalization waveform.This normalized signal is trimmed to 10 bit resolutions and passes to supply with delivers to the cycle subsystem, in this cycle subsystem, the signal that is trimmed to 10 bit resolutions is handled to determine rotor cycle.Rotor cycle is every circle rotor rotation measuring system clock.This motor is commutated by the 12 sampled digital sine-wave oscillators that produce in this subsystem.The input of rising synchronously sends the signalisation rotor and is in the zero crossing position, thereby this sine-wave oscillator is reset to position 0.Therefore, the phase place of this sine-wave oscillator is locked into zero cross point.According to the present invention, after the system clock in per 1/12 cycle, this current sinusoidal wave oscillator value increases.If motor speed surpasses predeterminated level, then this current sinusoidal wave oscillator is on duty with the gain input, and is trimmed to 10 bits then.This gain input is 10 bit values by the MPI control that comprises motor speed control.According to the present invention, if motor speed less than this predeterminated level, thereby then system gain is set to fixed value and guarantees reliable electric motor starting.
Cycle detection
The cycle detection subsystem calculates this rotor cycle according to the system clock of every circle rotor rotation.Zero cross point is represented in the least significant bit and highest significant position (msb) transition of this normalized signal input.The number of the system clock between these transition was presented as the cycle.For filtering level is provided, this periodic quantity is current and the meansigma methods of previous computation of Period.This phase place input allows at user option (passing through MPI) phase deviation to add this system.This is used to the sensing station optimizing motor performance and solve relative winding 1.This is 8 bit values, wherein, and the phase deviation of value 128 expressions 180 degree.Phase place 0 postpones output and comprises the number that postpones with the ADC sampling that obtains required phase deviation.Phase place 120 postpones output and comprises the number of waiting for the ADC sampling that obtains 120 degree phase deviations.
Three phase places produce
This driving signal drives signal by 3 delay lines to produce 0 °, 120 ° and 240 °.This 0 ° of delay line is used for zero cross point and rotor-position are carried out synchronously.Utilize cycle of 1/3 that 120 ° and 240 ° of delay lines are dynamically adjusted, should what postpone to calculate every line.
Symmetric PWM produces
Then, these three sine waves are carried out pulsewidth modulation.These pulses are arranged as about central point.According to the present invention, this is the realization of non-standard sawtooth waveforms reference waveform by utilizing the triangle reference waveform.Fig. 5 illustrates the operation of PWM function.Each input sampling is modulated to produce binary system output by ramp function, and the amplitude of pulse width of logic of this binary system output and 10 bits input sampling is proportional.Therefore, the gain setting in this normalization subsystem has the effect of the dutycycle of adjusting PWM output.This pulse width is big more, and the power that is sent to motor is big more, thereby motor rotates soon more.
Motor H drives
Each pwm signal is converted into 2 complementary driving signals, and one of them drives signal and is used for the N channel fet, and another drives signal and is used for the P channel fet.When N FET switches to P FET (vice versa), dead band in a small amount is inserted into to prevent the conducting simultaneously of N raceway groove and P raceway groove and with the short circuit of 9V track.This has reduced the power consumption of FET and has also reduced the noise generation.
The electronic circuit subsystem
The present invention includes according to two printed substrates (PCB) of arranging like that shown in Figure 7.
This CPU frame is responsible for:
The APAP algorithm
The humidifier controller
Data record
Visual display
Tone
High level data communication
Memory block comprises computer storage.
The LCD frame comprises LCD display, preferably adopts White LED.It is used for providing visual feedback to the user.RTC utilizes real-time timepiece chip.It will have the stand-by power supply that carries out data maintenance.Except the retention time, this clock also is used to keep the status information about gas transport means, thereby can recover operation under the situation of power failure.These these unitary calibration data of EEPROM storage.These devices all communicate with the CPU frame.
Debugging/RS232 frame comprises and is used to diagnose and control the necessary Ethernet of purpose or port connections/logic of RS232.
The keyboard frame comprises these unitary four LED back lighting buttons of control.These button arrangement are in delegation.A button not only can be used as on/off switch but also can be used as the model selection button.Other button is the option selector button.
The FPGA frame comprises surface function down:
Electric machine controller
The cpu i/f that is used for sensor signal (flow, pressure, ambient temperature, sheet temperature and humidity)
The cpu i/f that is used for the SD card
The cpu i/f that is used for ethernet controller
The cpu i/f and the controller that are used for the buzzer frame
This buzzer frame is used for button is pressed and warning provides auditory feedback.
This sensors A DC comprises the analog-digital conversion that is used for flow, pressure and sheet temperature sensor signal.This pressure transducer is measured the pressure of the air flow that is produced.The differential pressure technology is used to measure the flow velocity of air flow.It comprises the sheet Temperature Feedback that is used for the humidifier controller.This power supply adopts the DC input and produces four voltages.This heater frame comprises switching mechanism and the isolation that is used to control the humidification heating plate.This SD card frame comprises and is used for the SD clamp fixation device and is used for the essential logic of FPGA frame interface to the SD card.This RS232 or ether screen frame comprise the joint that is used for serial or LAN connection.
For the present invention, the operation of this FPGA control motor.This cpu i/f allows microprocessor control FPGA.This decoder is that this interface is carried out the independent blocks that chip is selected.This sensors A DC interface is carried out string and conversion.This interface read raceway groove and with the result be stored in can depositor by cpu i/f visit in.This temperature interface is carried out string and conversion to temperature sensor.This temperature is stored in the depositor that can conduct interviews by cpu i/f.This humidity interface was measured the moisture signal execution cycle from the main line PCB of gas transport means.This result can conduct interviews by cpu i/f.This buzzer controller produces the square-wave signal that is used to drive buzzer, preferably piezoelectric buzzer.Can programme to frequency and dutycycle by cpu i/f.
This card controller comprises the read-write buffer that sticks into row access that is used on the gas transport means.It is designed to alleviate the processing of from processor.
The description of software/firmware
The present invention includes firmware as preemptive type multitask system (pre-emptive multi-taskingsystem).
The major part of this gas transport means firmware comprises:
Core
The fault task
Automatic CPAP algorithm
The humidifier task
SD card task
Command Task
Communication task
The demonstration task
Monitor task
FPGA downloads function
The firmware upgrade function
The real-time clock function
E EThe PROM function
This core is under the OS, is used for the switching between the coordination of tasks and handles such as interrupting handling and the low level task of QSPI access.This fault task is the task of limit priority.It is used for the motor of monitoring failure situation and suitably moves then to close and to report this fault.This humidification task is used to control the humidification heater.How many electric energy supply heaters it controls to produce humidity to a certain degree based on current environmental temperature and humidity.This SD card task will be recorded in the SD card by the data that algorithm, fault and humidification task produce.This Command Task is basic supervisory programme, is used for making by serial port or 10/100 ethernet port the present invention being controlled.This communication task is controlled serial port or is controlled 10/100 ethernet port.This shows task control LCD and buzzer.It also provides this unitary alarm/time clock feature.What remaining four parts comprised that the various piece to gas transport means provides visit respectively organizes utilitarian function.These functions comprise FPGA download, real-time clock interface, E EPROM visit and FLASH/ firmware reprogramming.
Table 1 is used for the acronym of this document
CPU CPU
E 2PROM The electro-erasable programmable read only memory
EMI Electromagnetic interference
FET Field-effect transistor
FPGA Can a programming gate array
LCD Liquid crystal display
LED Light emitting diode
LVCMOS The low pressure complementary metal oxide semiconductors (CMOS)
MOSFET Mos field effect transistor
PWM Pulsewidth modulation
RTC Real-time clock
SPI Serial Peripheral Interface

Claims (21)

1. one kind is sent to the equipment of object with breathable gas, and described equipment comprises:
Aerator is used to transmit Compressed Gas;
Cistern is used for described gas is carried out humidification;
Heater;
Housing is used to hold described aerator and described cistern;
Air intake and gas outlet engage with a port in the described cistern; And conduit, be used for the gas from described gas outlet is directed to object.
2. one kind is sent to the equipment of object with breathable gas, and described equipment comprises:
Aerator is used to transmit Compressed Gas, and described aerator places in the sound insulation housing;
Housing is used to hold described aerator and cistern;
Heater is used for the water of described cistern is heated;
Air intake and gas outlet;
Pneumatic filter is contained in the removable transparent shell; And
Conduit is used for the gas from described gas outlet is directed to object.
3. one kind is sent to the equipment of object with breathable gas, and described equipment comprises:
Aerator is used to transmit Compressed Gas;
Housing is used to hold described aerator;
Air intake and gas outlet;
Conduit is used for the gas from described gas outlet is directed to object; And
At least one pumping chamber and at least one resonance device are adjacent with described aerator.
4. equipment as claimed in claim 3, described equipment also comprise cistern and the heater that the water in the described cistern is heated.
5. as any one the described equipment in the claim 1 to 4, wherein, described conduit comprises that being used for gas flows into and the effusive concentric tubes of gas.
6. equipment as claimed in claim 5, wherein, described gas inflow catheter comprises inner conduit.
7. as any one the described equipment in the claim 1 to 6, wherein, can be to vertical substantially any proper angle described equipment being provided with so that operate from basic horizontal, and the liquid that can from described cistern, not leak out.
8. one kind is sent to the equipment of object with breathable gas, and described equipment comprises:
Aerator is used to transmit Compressed Gas;
Cistern is used for described gas is carried out humidification;
Heater;
Housing is used to hold described aerator and described cistern;
Air intake and gas outlet; And
Conduit is used for the gas from described gas outlet is directed to object,
Wherein, can be provided with so that operate described equipment to be orientated vertical orientated substantially any proper angle from basic horizontal, and can from described cistern, not leak out liquid.
9. as any one the described equipment in the claim 1,2,4,5,6,7 and 8, wherein, described air intake and gas outlet engage with a hole in the described cistern.
10. as any one described equipment of claim 8 or 9, wherein, described conduit comprises that being used for gas flows into and the effusive concentric tubes of gas.
11. equipment as claimed in claim 10, wherein, described gas inflow pipe comprises inner conduit.
12. as any one the described equipment in the claim 8 to 11, wherein, can be to vertical substantially any proper angle described equipment being provided with so that operate from basic horizontal, and can from described cistern, not leak out liquid.
13. as any one the described equipment in the claim 1 to 12, described equipment also comprises pneumatic filter, described pneumatic filter is contained in the removable transparent shell.
14. as any one the described equipment in the claim 1 to 13, described equipment also comprises the lid with described cistern sealed engagement.
15. one kind is sent to the equipment of object with breathable gas, described equipment comprises:
Aerator has the outlet that is used to transmit Compressed Gas, and described aerator comprises motor room, two outlets air flue and valve chambers, and described aerator comprises the device of rapid change gas pressure or flow velocity;
Housing is used to hold described aerator and described cistern;
Air intake and gas outlet;
Pneumatic filter is contained in the removable transparent shell; And
Conduit is used for the gas from described gas outlet is directed to object.
16. equipment as claimed in claim 15, wherein, the device that is used to change gas pressure or flow velocity is at least one impeller.
17. as the described equipment of any one claim in the above-mentioned claim, described equipment also comprises the time signal dispensing device.
18. the method for the motor of an aerator that is used for controlling gas transport means, described method comprises the steps:
Determine the position of rotation of impeller;
Determine the speed of impeller; And
Adjustment is used to control the sequential of winding excitation of the speed of described impeller.
19. one kind is sent to the method for object with breathable gas, described method comprises the steps:
With impeller environmental gas is compressed;
Described environmental gas is carried out humidification;
Gas behind the humidification is directed to the air flue of object; And
Wherein, compression step comprises the position of adopting a sensor device to detect described impeller.
20. method as claimed in claim 19, wherein, a described sensor device is a hall effect sensor.
21. one kind as this paper with reference to described gas transport means of accompanying drawing or system.
CN2006800393254A 2005-10-21 2006-10-16 Apparatus for delivery of pressurised gas Active CN101291703B (en)

Applications Claiming Priority (3)

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AU2005905836 2005-10-21
AU2005905836A AU2005905836A0 (en) 2005-10-21 Apparatus for delivery of pressurised gas
PCT/AU2006/001513 WO2007045017A2 (en) 2005-10-21 2006-10-16 Apparatus for delivery of pressurised gas

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CN101291703A true CN101291703A (en) 2008-10-22
CN101291703B CN101291703B (en) 2012-07-04

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KR (2) KR101326936B1 (en)
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AU (2) AU2006303868B2 (en)
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